Yes Annie, you are right.
I imagine Theresa May has gone home quite exhausted and often stressed out most nights, for the last three years. She has behaved with dignity throughout even when all the knives were out.
I admire her as a woman, and yes,it would have been very much harder for her without her loyal and supportive husband. (I never had one of those as a married woman.) I loved the way he was so protective of her, almost urging her on at a difficult time when she said goodbye on the Downing Street podium. I expect he is relieved that she doesn't have to take the strain any more.